in python file. not text file.
only in case of you can’t upload/use .py file, you can give it to me in text file
ISTA
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30: Homework 8
1 Practice with strings and lists
The first two problems are from checkio.org; if you want, you can create an account there and
solve them on the website, where there are some additional hints (and less fluent English).
1. (
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pt.) Given a string that is a sentence, write a function to remove all of the extra spaces
between words; words should have only one space between them
Example:
>>> print one_space(“Big space here”)
Big space here
2. (2 pt.) Given a list of integers, write a function to return a list consisting of only non-unique
elements. That is, return only elements that appear more than once in the list. You may
want to build up a new list of these elements using “append”
Example:
>>> non_unique([1,3,2,5,3,1,4])
[1,3,3,1]
3. (3 pt.) Make a program to take all the capitalized words out of a text file, using a for loop. It
should take the text files name as input, and output the modified text to a new text file. Run
the program on the “20k excerpt.txt” example file (posted on D2L) and turn in the results.
4. (3 pt.) Make a copy of your program, and rewrite it to use a list comprehension to remove
the capitalized words.
5. (5 pt.) Given a list of items, print them out in two equal-length columns (plus or minus one
item). You’ll want to use your string formatting methods. You may want to split the list of
items in two. You’ll also need to consider how to determine the width of the columns. All of
the items in the second column should be aligned with each other.
When it’s ready, try your function out on these lists:
>>> shorts = [’cat’, ’dog’, ’bear’, ’fish’, ’pig’, ’cow’, ’ant’, ’bat’]
>>> longs = [’kangaroo’, ’echidna’, ’platypus’, ’wallaby’, ’koala’]
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The output should be something like:
>>> print_columns(shorts)
cat pig
dog cow
bear ant
fish bat
>>> print_columns(longs)
kangaroo wallaby
echidna koala
platypus
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Submit your hw08.py script to the Homework 8 Dropbox folder in D2L. Also submit your modified
20k excerpt.txt file.
Total Points: 15 points possible
Extra Credit: 0 points possible
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What to turn in
